rajivnarayana/sudoku.md

## sudoku.md

      
    Raw
  

              sudoku.md
            
          
    Write a function that receives a completed Sudoku board as parameter and returns either Finished if the Sudoku is done correctly or Try again! if not.


The board received an array of 9 subarrays as a parameter. These are the board's rows.
Sudoku rules


There are 9 rows in a traditional Sudoku puzzle. There may not be any duplicate numbers in any row. Each row must be unique.
The are 9 columns in a traditional Sudoku puzzle. There may not be any duplicate numbers in any column. Each column must be unique.
A region is a 3x3 box. There are 9 regions in a traditional Sudoku puzzle. There may not be any duplicate numbers in any region. Each region must be unique.
Every row, column and region contains the numbers one through nine only once.


Valid board example:


Example of function usage:

doneOrNot([[5, 3, 4, 6, 7, 8, 9, 1, 2],
          [6, 7, 2, 1, 9, 5, 3, 4, 8],
          [1, 9, 8, 3, 4, 2, 5, 6, 7],
          [8, 5, 9, 7, 6, 1, 4, 2, 3],
          [4, 2, 6, 8, 5, 3, 7, 9, 1],
          [7, 1, 3, 9, 2, 4, 8, 5, 6],
          [9, 6, 1, 5, 3, 7, 2, 8, 4],
          [2, 8, 7, 4, 1, 9, 6, 3, 5],
          [3, 4, 5, 2, 8, 6, 1, 7, 9]]) // "Finished!"

doneOrNot([[5, 3, 4, 6, 7, 8, 9, 1, 2],
          [6, 7, 2, 1, 9, 0, 3, 4, 9],
          [1, 0, 0, 3, 4, 2, 5, 6, 0],
          [8, 5, 9, 7, 6, 1, 0, 2, 0],
          [4, 2, 6, 8, 5, 3, 7, 9, 1],
          [7, 1, 3, 9, 2, 4, 8, 5, 6],
          [9, 0, 1, 5, 3, 7, 2, 1, 4],
          [2, 8, 7, 4, 1, 9, 6, 3, 5],
          [3, 0, 0, 4, 8, 1, 1, 7, 9]]) // "Try again!"
Solution

export function doneOrNot( board ) {
   //Insert your code here 
}